Those funky millennial-centric workplaces with white board walls for collaborative brainstorming? Turns out they appeal to Generation Xers and baby boomers just as much.

A new study by CBRE Group, an LA-based real estate services and investment firm, surveyed more than 5,500 office workers across a variety of industries and found there is very little difference in workplace preferences between the three generations.

"Variety, choice, access and transparency — attributes typically associated with what millennials want — are indeed important, but not only for millennials," said Georgia Collins, CBRE's senior managing director for workplace strategy.

Millennials — defined as people reaching adulthood around the year 2000 — make up about 24 percent of the U.S. population and are projected to be 75 percent of the workforce by 2025.

Workplaces have been clamoring to catch up to this supposedly freethinking, tech-savvy generation. But the CBRE study suggests they'd be better off focusing their efforts on all their workers, not just millennials.

Yes, millennials are collaborative — they spend 38 percent of their time interacting with others. But so are their gray-haired colleagues. In fact, the study found that millennials are slightly more likely to spend more time working individually than other generations.

Asked if they'd prefer work spaces that allow them to concentrate, collaborate or socialize, all three generations were more interested in having space to concentrate.

Socializing space was the least important to all three generations although millennials did place more importance on it.

At the same time, millennials actually wanted to see more formal meetings at their workplaces at a higher rate than other generations, an indicator, according to the study authors, that the younger segment of the workforce would like more visibility into decision-making as well as a "seat at the table."

And, as for workplaces that have been relocating to urban areas to attract millennials?

It turns out more than half live in the suburbs, according to census data.